Senior Frontend Code Reviewer with 12+ years JavaScript/TypeScript experience. Use when reviewing React/TypeScript code, checking code quality and style, verifying accessibility compliance, ensuring test coverage, or configuring linting tools (ESLint, Prettier).
Review React/TypeScript code for bugs, security vulnerabilities, performance issues, accessibility gaps, and CLAUDE.md workflow compliance. Enforces TypeScript strict mode, GPU-accelerated animations, WCAG AA accessibility, bundle size limits, and surgical simplicity. Use when completing features, before commits, or reviewing pull requests.
Enforce code standards, validate against project patterns, review code quality, and maintain consistent TypeScript strict mode compliance across all components
Structural code pattern search and refactoring using ast-grep (sg). Use for finding functions, classes, methods, imports, or any code structure patterns. Supports syntax-aware analysis across multiple languages including JavaScript, TypeScript, Python, Ruby, Go, Rust, and more. Use when searching for code patterns based on structure rather than plain text.
Test quality validation detecting mesa-optimization, happy-path bias, vacuous assertions, and error-swallowing anti-patterns. Use when reviewing test files for quality issues, evaluating test meaningfulness, or ensuring tests validate behavior rather than passing trivially. Supports JavaScript, TypeScript, and Python test frameworks.
代碼實作階段觸發。強制執行統一的編碼規範，支援 Java、TypeScript、Go 多語言。包含 Input/Output 模式、依賴注入、不可變物件等規範，確保代碼風格一致性。
Best practices for TypeScript types, interfaces, assertions, and type safety. Use when writing or reviewing TypeScript code.
Automatically validates Cloudflare Workers binding configuration, ensuring code references match wrangler.toml setup and TypeScript interfaces are accurate
Enforces functional programming, immutability, and strict type safety when writing, reviewing, or editing TypeScript and React code.
Global coding conventions and best practices for modern full-stack TypeScript development. Load when implementing any code to ensure consistent naming, error handling, file organization, type safety, and code style across the entire codebase.
Audit public TypeScript types against src/planning/spec-v0.3.md, flag mismatches, and enforce acceptance criteria (build, no circular imports).
TypeScript strict mode configuration for 2025. Recommended tsconfig.json settings, strict flags explained, moduleResolution strategies (Bundler vs NodeNext), verbatimModuleSyntax, noUncheckedIndexedAccess. Use when setting up TypeScript projects or migrating to stricter type safety.
Enforces TypeScript best practices when writing code. Automatically enables strict typing for TypeScript projects, prevents `any` usage, and recommends generic constraints. Activate on TS/TSX files, new features, code reviews.
Review full-stack code for bugs, security vulnerabilities, performance issues, accessibility gaps, and CLAUDE.md compliance. Enforces TypeScript strict mode, input validation, GPU-accelerated animations, and design system consistency. Use when completing features, before commits, or reviewing pull requests.
TypeScript type safety guidelines. Use this when writing TypeScript code, especially when handling errors or unknown data types.
TypeScript best practices, type system usage, and code quality standards
Implement authentication and authorization with Better Auth - a framework-agnostic TypeScript authentication framework. Features include email/password authentication with verification, OAuth providers (Google, GitHub, Discord, etc.), two-factor authentication (TOTP, SMS), passkeys/WebAuthn support, session management, role-based access control (RBAC), rate limiting, and database adapters. Use when adding authentication to applications, implementing OAuth flows, setting up 2FA/MFA, managing user sessions, configuring authorization rules, or building secure authentication systems for web applications.
Comprehensive testing patterns for modern TypeScript applications covering Vitest, React Testing Library, Playwright E2E, and MSW API mocking.
Property-based testing with fast-check (TypeScript/JavaScript) and Hypothesis (Python). Generate test cases automatically, find edge cases, and test mathematical properties. Use when user mentions property-based testing, fast-check, Hypothesis, generating test data, QuickCheck-style testing, or finding edge cases automatically.
Senior Frontend QA Engineer with 10+ years JavaScript/TypeScript testing experience. Use when writing unit tests for React components, creating integration tests with React Testing Library, testing custom hooks, mocking APIs, or following TDD for frontend.
